Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N136HQ - Embraer EMB-175 LR - American Eagle RPA4635/YX4635, Memphis (MEM) to Chicago O'Hare (ORD) - 3.6 mi away @ 29575 ft, heading NNE at 546 mph. Spotted 21x before. [08:12:53 AM CST] #A09239 #N136HQ #E75S #BRICKYARD #RPA4635 #YX4635 #autopilot #ADSB #ADSBbot